One-liner to strip non-ascii characters from files

# Copy files, keep directory structure, place copy into current working directory, and strip all non-ascii characters:

find /data/music/touhou/ -iname *.mp3 -exec sh -c 'mkdir -p .`dirname "$0"| tr -cd "a-zA-Z0-9.-_"`; cp -av "$0" .`dirname "$0"| tr -cd "a-zA-Z0-9.-_"`/`basename "$0"| tr -cd "a-zA-Z0-9.-_"`' {}  \;